Forget comparisons with 1914, or to Munich in 1938. Forget the war that tore Yugoslavia apart in the 1990s and remember, instead, Schleswig-Holstein. A century and a half ago, it was the Crimea of its day,  a piece of disputed territory that caused international turmoil and confusion.     

Less than a week before Crimea's referendum, emotions are running high. Residents of the southeast Ukrainian peninsula who want to see their region cede from the nation and officially become part of Russia sense victory is round the corner. The U.S. and Europe say the vote -- and the Russian invasion that prompted it -- are illegal, but CBS News' Elizabeth Palmer reports that thousands of pro-Russia demonstrators on the streets of regional capital Sevastopol don't care.

It seems like one reason why Russia’s actions in Crimea appear so jarring and brazen is that it’s a form of warfare that was once common but rarely take place anymore. Russia may not formally annex Crimea – it seems more likely that the territory will declare independence under heavy Russian influence – but it has essentially invaded another country to lob off a piece of territory that was, despite longstanding nationalist sentiment, an undisputed part of Ukraine.